Shaped-steel concrete frame-steel supporting structure section-changeable conversion node

Abstract

A type of steel concrete frame-steel support structure variable cross-section conversion node, which is connected and poured into one by the medium-shaped steel in the column, the medium-shaped steel in the beam, the steel support, the reinforced concrete in the column, and the reinforced concrete in the beam. The section steel and the beam medium-section steel flange plate are connected orthogonally, the web of the beam medium-section steel at the node junction is converted into a web with increased height and variable section, and the upper side of the web with increased height and variable section is welded to the upper flange with increased width and variable section, and the height and variable section The underside of the web plate is welded with the lower flange of the widened and variable section; the shape of the steel support at the junction of the nodes is converted into a structure in the transition zone of the variable section node, and the two flange plates of the steel support in the transition zone of the variable section are respectively connected with the steel in the column and the The beams are connected orthogonally in steel sections. The invention enhances the stress performance of the section steel concrete frame-steel support structure joint area and the synergistic effect ability of the section steel and reinforced concrete.

Description

(1) Technical field [0001] The invention relates to a node structure of a steel support and a steel beam column in a steel-concrete composite building. (2) Background technology [0002] The National Gymnasium is one of the three main venues for the Beijing 2008 Olympic Games. During the Olympic Games, gymnastics competitions and handball finals will be held mainly, and wheelchair basketball competitions will be held during the Paralympic Games. Its buildings are composed of a competition hall and a warm-up hall. The competition hall can accommodate about 19,000 spectators, with a total construction area of ​​80,890m 2 , one basement and four floors above ground. The longitudinal length of the roof plane projection is 195.5m, and the horizontal width is 114m. [0003] Steel Reinforced Concrete Composite Structure (SRC structure for short) is a main form of steel and concrete composite structure. The characteristic of the steel concrete structure is that the steel is confi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a steel concrete frame-steel support structure variable cross-section conversion node, mainly solve and improve the technical problems of the node connection quality of the complex steel concrete frame-steel support structure system, and enhance the seismic performance of the node area; and solve The joints between shaped steel beams and steel supports, shaped steel columns and steel supports are not equal in strength, the steel supports are unevenly stressed, difficult to support the formwork, and are prone to slipping and exposed technical problems; also solve the spatial contradiction between the shaped steel and the reinforcing bars in the three-way intersection node area , the technical problem of enhancing the synergistic ability of steel and steel bars; at the same time, it solves the joint construction problem of a steel concrete frame-steel support structure used to design a super-high, long-span, and heavy-duty building structure

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